A researcher attempting to study the effects of obstetric (that is, child-birth) medication on the behavior of newborn infants cannot control which newborns will have been exposed to these medications. As a result this study would be

Question

Quizplus · Accepted Answer

Since the researcher cannot control which newborns are exposed to medication, this study cannot be a controlled experiment. However, the researcher can still observe and compare the behavior of infants who were exposed to medication with those who were not, making it a natural (or quasi-) experiment.

A Researcher Attempting to Study the Effects of Obstetric (That